Eventually there will be a tipping point in the US online poker industry. And it'll occur when enough states have merged their legal online poker operations that offshore sites start abandoning ship.
Two major events have occurred this year to facilitate that process: the legalization of online poker in Pennsylvania and the interstate liquidity compact between New Jersey, Nevada, and Delaware. Coupled with the prospect of Pennsylvania joining the compact, legal online poker stands to soon be in a much healthier place than it is now.